Are there discrepancies amongst an iPhone for AT&T, T-Mobile, and Verizon? The iPhone versions for AT&T, T-Mobile, and Verizon are the identical. If you choose to pay for with the AT&T Installment System, your iPhone will probably be locked to the provider. For aspects on community support, please see aid.apple.com/en-us/HT204039 (Opens in a comple